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A comment on Z80 arithmetic: also surprisingly terrible (2018). Parent comment

Re:Z80 arithmetic: also surprisingly terrible (2018) by mark-r on Monday January 14, 2019 @11:49AM (#18904333)
+1 for the 6809. I've worked with both the Z80 and 6809, and while both were long enough ago that I don't remember the details the 6809 really impressed me. I wonder if there's ever been another 8-bit processor that surpassed it.
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Re:Z80 arithmetic: also surprisingly terrible (2018) by Gibbon1 on Monday January 14, 2019 @03:10PM (#18906024)
I remember the 6809 it was really clean and capable and I think supported relocatable code. Very much unlike the funky instruction sets of any of the other 8 bit machines and not the horror show that was x86.
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Re:Z80 arithmetic: also surprisingly terrible (2018) by mark-r on Monday January 14, 2019 @10:18PM (#18908623)
I much preferred the 68000 to the 8086. The regularity of the instruction set made writing a disassembler trivial. Coupled with the single-step bit you could write a very capable monitor, which I did.
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Re:Z80 arithmetic: also surprisingly terrible (2018) by jonsen on Monday January 14, 2019 @05:05PM (#18906978)
Yes, the 6809 could jump and branch relative to the current location, program counter + offset. If all jumps where of that kind a program could be located anywhere in memory.
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